Giant elliptical galaxies may be the result of ________ in the centers of rich clusters
Fill in the blank(s) with correct word
galaxy mergers (or cannibalism)
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A 10.0 kg object is hanging by a massless rope in an elevator that is traveling upward. The tension in the rope is measured to be 75.0 N. What are the magnitude and direction of the acceleration of the elevator?
What will be an ideal response?
It is 12:00 noon local solar time at 75°W. The date is March 21 . At which of the following longitudes would an observer be able to see the last-quarter moon rising?
a. 105°W b. 75°E c. 15°W d. 105°E
A gamma ray is another name for a(n) __________
Fill in the blank(s) with correct word
The voltage 8.00 sin (400t) is applied to a series RLC circuit, with R = 200 ?, L = 0.100 H, and C = 1.00 ?F. What are the impedance Z and the phase angle ??
a. 200 ?, ?37.0° b. 566 ?, +87.0° c. 2 470 ?, ?85.4° d. 2 540 ?, ?88.8° e. 393 ?, ?63.0°